Parachute



June 16, 1931 A. .LEHMANN 1,310,438

I I PARACHUTE Filed Feb. 20, 1930 Sawmtoz Alekmamz Patent ed June 16,- 1931 UNITED STATES v ALBERT LEHMANN, BROOKLYN, NEW YORK PARACEUTE Application filed February 20, 1930. Serial 170.4%,895.

The mainobject of this invention is'to provide a parachute which is made in the form of abag into which a lifting gas is introduced. a v. i

Another object of the invention is to pro- ;vide a parachute equipped with a bag exhausted by a valve and has a separate encircling conduit thereon. This conduit and bag are both adapted to be filled with some lifting gas, such as helium, hydrogen and the like. 1

Still another object of the invention is to provide a parachute in the form of a closed bag havin encircling conduit, both of which are filled t rough the hoses from a container which is strapped about the body of the person using the parachute.

A further-object of the invention is to provide a parachute in the form'of a bag which is encircled by a conduit, both the bag and conduit are adapted to be filled by some lifting'gas and are provided with mechanism whereby thejifti'ng gas may be valved out of the dev1ce.' The above and other objects will become 1 apparent in the descriptionbelow in which characters of reference refer to like named parts in the drawings.

Referring briefly to the drawings, Figure 1 is a longitudinal sectional elevatlonal view through the parachute showin the means of transferring the gases from t e tank to the tubes.

Figure 2is a longitudinal sectional eleva- {)ional view of the valve located in the gas Fi re 3 is a longitudinal sectional elevationa view of-a valve coupling located in the bottom; of the bag of the parachute.

. Figure is a perspective view showing the parachute in urled position a sack mounted upon the gas container."

Figure 5 is,a longitudinal sectional elevational view through the control valve in the gas container.

Referring-in detail to the drawings, the numeral 10; indicates a hemispherical head, whichisprovided with a dome 11 and a concave under-roof 12. At. the junction of the 60 head 10 and roof 12, a'c0nduit 13 circular in cross section is formed. At arcuately spaced apart position on the area within the chamber 16 of the parachute, outlet valves are mounted on the conduit so that the gas when 7 over normal pressure will valve into the chamber 15 from the chamber 16 of the con.- duit. Suspended frofn the roof 12 is a flexible hose 17. This hose connects with the chamber 15 of the parachute and a manifold 20. The manifold has joined thereto a plurality of tubes 18 which seat upon the carrying straps 19. The manifold'is' provided with a gas chamber 21, whose lower end opens as a threaded sleeve 22, the latter being engageable with a nipple or the like upon the upper surface of a gas container- 23. This gas container is draped on the breast of the wearer and is retained in such position b the harness bands 24 and 25.- The mani old has communication with the interior of the container 23 through a pipe 29, which is selectively opened or closed a valve stem 27, having an openin 28 therein. The valve stem 27 .is manipu ated by a handle 26 in an obvious manner. The entire parachute is rolled similar to a stocking and isslipped into a carr 'ng bag 31.

. The dome 11 o mounted therein within the chamber 15 a valve body 32 in which a conical valve seat 33 is formed. The valve seat has normally contacting therewith a valve head 3a from the parachute haswhich depends. a stemprovided with an eye- A let.37. The seat passes through an enlarged opening in the body 32 of the valve and the head 34 fits loosely inthechamber of the body, so that the gas "may circulate freely through-the valve body when the head 34 is, lowered. The valve headis normally retained in contacting position with the seat 33 by a coil spring 35, which urges said head upwardly. The e elet 37 of the valve stem 36 has a pull cor 38 secured thereto which extends to a leak-proof coupling illustrated in Figure 3, and located in the roof 12 of the parachute. This coupling comprises a body 39 in which is located an upright conical seat, 40 and an inverted conical seat 41; The conical seat 40 is adapted to have rested thereon a conical 72 head 42. when the valve illuscollar 48 is located. This collar is supported by a coil string 47 which is wound'about the stem 44 and rests upon the flange 46. The coupling for the pull cord is provided 'with a face plate 49 which is rigid with the body 39 and an auxiliary face plate 50 threadedly arranged on the body so that the coupling may be fitted in an aperture in the roof 12 of the parachute through thesetwo members.- The parachute is adapted to be rolled when in folded condition similar to a stocking and is carried in the carrying bag 31. r The entire contraption inc-uding the car-1' ryin harness by which the person is-carried by t e parachute, not shown on the drawings, is strapped to the body of the user. As the user leaps out of a plane or the like from an altitude, the parachute is slipped from the bag and at the same time the valve handle 26 is manipulated. The compressed lifting gas carried in the container 23 then circulates through the hose 17 and the plurality of tubes 18. The hose l7 fills the chamber 15 while the conduit chamber 16 is filled by the tubes 18. The arachute is so constructed that the speed 0 fall may be varied by valving the gas from the chamber 15 t is to be noted that the gas inentering the conduit chamber 16 will unfurl the entire head of the parachute and the superfluous amount of gas which passes into the chamber 16 is valved into chamber 15 through a plurality of valve members 14. The chamer 15 is valved by manipulating the pull cord 45. A very slight movement is all that is necessary to valve the gas from the valve body 32. The pull cord 45 is attached to theupright and inverted'valve heads 42 and 43 respectively through the medium of the stem 44. The coupling when the valve, illustrated in Figure 2, is closed, assumes the position shown in Figure 3. As the pull cord 45 is lowered, the upper valve head 42 nected to said container and openings in said conduit entering into the chamber in said hegg and means for valving gas out of said he 2. In a parachute, a hemispherical head, a conduit encircling said head, a hemispherical roof closing said head, a gas container, a hose connecting with the chamber in said head, said hose being adapted to be connected to said container and openings in said conduit entering into the chamber in said head, a plurality of tubes communicating with said conduit, a manifold suspended from said head and connected to-said hose and tubes and means for valving said gas out of said head 3. In a parachute, a hemispherical head, a conduit encircling said head, a hemispherical root closing said head, a gas container, .a hose connecting with the chamber in said head, said hose being adapted to be connected to said container and openings in said conduit entering into the chamber in said' head, a plurality of tubes communicating comes to rest upon the seat 40 and pull upon the cord 38 which is attached to the valve stem 36 of the gas valve through the medium of the eyelet 37.

It is further to be noted that certain changes in form and construction may be made without departure from the spirit and scope of the invention.

I claim:

1. In a parachute, a hemispherical head, a

conduit encircling said head, a hemispheri cal roof closing said head, a gas container, a hose connecting with the'chamber in said head, said hose being adapted to be con- 

